Error while using File Transfer activity for transferring files to a FTP

Hello Folks,

I am trying to transfer a file to a FTP location, i have configured an External Account with FTP and using same in File Transfer activity. In activity, i provided server folder and enabled "Use the file generated by the previous activity".

But when i ran the workflow, i am facing below error repeatedly:

04/01/2019 12:43:44 AM fileTransfer Upload error in cURL

04/01/2019 12:43:44 AM fileTransfer Upload failed (at start/before it took off)

04/01/2019 12:43:44 AM fileTransfer Upload failed (at start/before it took off)

Could you please help me in what went wrong? Is it something to do with access restrictions?

Regards,

Sri Bhargav